cause to disagree

Drivers stuck in an eight-mile traffic jam beginning at the start of the Games Lane on the M4 motorway linking Heathrow, the gateway airport for the Games, with central London might have had cause to disagree.

Convicts know that they are to be punished, that the government has sentenced them, that it is the law; and though they may find cause to disagree with the decree that consigns them to hopeless and useless servitude, they accept it as at least legal and incident to the game as played.